/*
 * Copyright 2013 serso aka se.solovyev
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Contact details
 *
 * Email: se.solovyev@gmail.com
 * Site:  http://se.solovyev.org
 */

package org.solovyev.android.calculator;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

/**
 * User: Solovyev_S
 * Date: 20.09.12
 * Time: 18:18
 */
public interface CalculatorEventData {

	// the higher id => the later event
	long getEventId();

	// the higher id => the later event
	@Nonnull
	Long getSequenceId();

	@Nullable
	Object getSource();

	boolean isAfter(@Nonnull CalculatorEventData that);

	boolean isSameSequence(@Nonnull CalculatorEventData that);

	boolean isAfterSequence(@Nonnull CalculatorEventData that);
}
